Incandescent-electric-lamp socket.



-INGANDESGENT ELECTRIC LAMP SOCKET.

APPLICATION FILED JUNE 25, 1903.

N0 MODEL.

I \A/ITAIESZEE.

v UNITED STATES Patented November 3, 1903.

PATENT OFFICE.

AUGUST WEBER, JR., OF SCHENECTADY, NEW YORK, ASSIGNOR TO AUGUST WEBER, SR., OF SCI-IENECTADY, NEW YORK.

INCANDESCENT-ELECTRlC-LAM P SOCKET.

SPECIFICATION forming part of Letters Patent No. 743,358, dated November 3, 1903. Application filed June 25, 1903. Serial No. 163,069. (No model.)

To aZZ whom it may concern;

Be it known that LAUGUST WEBER, Jr., a citizen of the United States, residing at Schenectady, county of Schenectady, and State of New York,have invented certain new and useful Improvements in Incandescent-Electrics Lamp Sockets, of which the following is a specification.

The invention relates to such improvements; and it consists of the-novel construction and combination of parts hereinafter described and subsequently claimed.

.Rei'erencc may be had to the accompanying drawings, and the'reference characters marked thereon, which form a part of this specification.

Similar characters refer to similar partsin the several figures.

Figure l of the drawings is a plan view of the insulating-base and socket-sleeve of the improved incandescent-electric-lamp socket, showing the open outer end of the sleeve. Fig. 2 is a central vertical section of the same, taken on the broken line 2 2 in Fig. 1. Fig. 3 is a plan view ofthe inner end of the socketsleeve, showing the end wall cut to form the tongue from which the terminal-bracket is formed. Fig. 4 is a central vertical section of the same, taken on the broken line 4 4 in Fig. 3, showing the tongue bent outwardly. Fig. 5 is a similar View showing the tongue doubled upon itself. Fig. 6 is a side view of the completed socket-sleeve. Fig. 7 is a view in cross-section of the terminal-bracket and mechanism for connecting the circuit-wire terminal thereto, taken on the broken line 7 7 in Fig. 6.

This invention relates to sockets for incandescent electric lamps of the type employing a sheet-metal socket-sleeve formed to receive and embrace the base of the incandescent lamp and make contact with'one of the lampterminals, the invention relating more particularly to the construction of such a socketsleeve whereby are secured certain advantages'in the construction and use of such sockets.

Among the objects of the invention are to reduce the number of parts, to secure a more positive contact between conductive members and to render the device more positive in operation, and to facilitate and reduce the cost of manufacture.

Referring to the drawings, 1 represents the insulatingbase of an incandescent-electriclamp socket, which may be of any known form, and 2 a sheetmetal socket-sleeve mounted at its inner end thereupon and secured thereto, as by means of screws 3 inserted through apertures in the introverted end flanges at on the inner end of the sleeve and anchored to said insulating-base in any known manner. This socket-sleeve is connected with one of the circuitwire terminals and may be formed in any known manner to adapt it to receive and embrace the base of an incandescent electric lamp and make contact with one otthe lamp-terminals, as by providing the same with a screw-thread. The socket is provided with means for com necting the other lamp-terminal with the other circuit-wire terminal, as by providing the'same with a springcontact 5, connected with the other circuit-wire terminal in the usual manner and adapted to engage the other lamp-terminalwhen the base ofthelamp is inserted in the socket in the usual manner.

In forming socket-sleeves of this character a blank of sheet metal is struck up by dies to cup shape, after which the side wall is provided with the screw-thread, and a portion of the end and side walls is removed, leaving certain portions of the end wall in the form of introverted flanges, whereby the sleeve is connected with the insulating-base. As heretofore commonly constructed a terminalbracket was connected in fixed relation with said sleeve by making the same integral with the horseshoe shaped washer secured by screws to the insulating-base and serving to clamp upon said base the introverted end flanges on the sleeve interposed between said base and washer. In carrying out the present invention the socket-sleeve is provided with an integral terminal member and means for connecting directly thereto a circuit-wire terminal.

On socket-sleeves of the class described it is possible to use for the terminal member or bracket therefor a portion of the end wall of the sleeve which has heretofore been cut away and considered a waste product. To

thus form such an integral terminal member, the inner end Wall of the sleeve is slitted or cut at 6 to form from the middle portion of said end wall the tongue 7, which is then displaced and bent outwardly to occupy a position approximately in line with the side wall of the sleeve, as shown in Fig. 4. The diameter of the sleeve is such that a tongue so formed is approximately twice the length necessary for a terminal-bracket, permitting the tongue to be doubled upon itself to form a bracket of greater thickness. The doubledtongue members are preferably mechanically connected together, as by providing the end of the tongue with a lip 8, adapted to enter and be riveted in an aperture 9, formed in the tongue near its base. The terminal member or bracket thus formed may be provided with anyknown means for connecting therewith a circuit wire terminal, as by providing the same with an aperture 10, adapted to receive the shank of a screw 11, between the head of which and said bracket a circuit-wire terminal 16 is adapted tobe clamped in the usual manner. The aperture 10 may be provided with interior screw-th reads adapted to receive and lit the shank of the screw, or, if preferred, the screw may pass loosely th rough the aperture 10 and be provided on the innerside of the bracket with a separate nut 12, adapted to receive the screw, which nut may be held from rotatingin any known manner, as by engagement therewith of introverted edge portions 13 of the tongue 7, as shown in Fig. 7. The nut 12 may be secured to the tongue or bracket in any known manner.

The bracket formed by the tongue 7 can be materially reinforced and strengthened by forming thereon one or more em bossments 15, extending longitudinally thereof and from said bracket into the body of the sleeve across the line of junction therebetween, making the whole a practically rigid structure. Two of such embossments are preferably employed terminating between the screw-aperture 10 and the bottom of the sleeve, the outwardly projecting outer ends of said embossments beinglocated in proximity to the screwhead 11 and serving as guards to prevent the displacement of the circuit wire terminal from beneath said screw-head. By the use of this invention the circuit-wire terminal 16 is connected directly to an integral portion of the socket-sleeve, thereby reducing to a minimum the danger from defective or imperfect connections between con ductive members. The invention also eliminates the expense and trouble of -constructing and securing in position the horseshoewasher heretofore employed.

The insulating-base and socket-sleeve may be provided with any known form of inclos- .ing case and other appurtenances of a lampsocket not herein shown. The other circuitwire terminal 17 may be connected directly to the base of the spring-contact 5 by means of the screw 18 in the keyless type of socket illustrated in the drawings.

What I claim as new, and desire to secure by Letters Patent, is

1. As an improved article of manufacture, a socket-sleeve for incandescent-electric-lamp sockets having an integral portion of its inner end wall displaced outwardly to form a terminal-bracket, said bracket being provided with a screw-aperture, and having embossments formed between said screw-aperture and the body of the sleeve.

2. As an improved article of manufacture, a socket-sleeve for incandescen t-electric-lam p sockets having a tongue formed by slitting its end wall bent outwardly to form a terminal-bracket, and having an embossment extending from said bracket into the body of the sleeve across the line of junction therebetween.

3. As an improved article of manufacture, a socket-sleeve forincandescent-electric-lamp sockets having a tongue formed by slitting its inner end wall bent outwardly, doubled upon itself and provided with means for connecting therewith a circuit-wire terminal, and having a lip on one tongue member riveted into an aperture in the other member.

4. In an incandescent-electric-lamp socket, the combination with a sheet-metal socketsleeve for the lamp-base having an integral portion of its end wall bent outwardly to form a terminal member provided with an aperture and having a nut-engaging offset formed thereon; of a headed screw loosely inserted through said aperture; and a nut on the screw adapted to bear upon one side of said member and upon said offset, whereby an interposed circuit-wire terminal can be clamped between the head of the screw andthe opposite side of said member, substantially as described.

. 5. In a socket for incandescent electric lamps, the combination with an insulatingbase, of a sheet-metal socket-sleeve formed to receive and embrace the base of an incandescent electric lamp, and form a contact with one of the lamp-terminals, said sleeve having on its inner end introverted flanges seated and secured upon said insulating-base and an integral tongue bent outwardly to .form a terminal-bracket; means for connecting to,

said terminal-bracket one of the circuit-wire terminals; and means for connecting the other circuit-wire terminal with the other lampterminal, substantially as described.

In testimony whereof I have hereunto set my hand this 19th day of June, 1903. AUGUST WEBER, JR.

Witnesses:

FRANK C. CURTIS, E. M. OREILLY.

ICC 

